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Finding the Fourth Proportional to 326,251.67, 489,219.30 and 191,359.82

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Solution

The fourth proportional to 326,251.67, 489,219.30 and 191,359.82 is: 286,946.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,251.67 : 489,219.30 = 191,359.82 : x
  2. Step 2: Convert to fraction form
    326,251.67/489,219.30 = 191,359.82/x
  3. Step 3: Cross multiply
    326,251.67x = 489,219.30 × 191,359.82
  4. Step 4: Simplify right side
    326,251.67x = 93,616,917,693.97
  5. Step 5: Solve for x
    x = 93,616,917,693.97/326,251.67
  6. Step 6: Final answer
    x = 286,946.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.